Nitecore UM2 Dual Slot Battery Charger

An inteligent charger powered by a micro-USB port, with two charging slots.

The Nitecore UM2 Dual Slot Battery Charger is compatible with Quick Charge (QC) mode, reaching a maximum charging current up to 3000mA, 1500mA in each slot.

This smart battery charger features a liquid crystal display (LCD) that gives real-time information of charging.

It is powered from a micro USB port, which allows it to be versatile, portable and indispensable on nature outings.

It has a charging program specially optimized for IMR batteries. It controls the entire charging process ensuring that the cut-off voltage is always within safe limits so as to increase the lifespan of the batteries.

The UM2 will automatically selects between 3 different charging modes (CC, CV and -dv/dt) according to the battery type and capacity.

Charging parameters can also be adjusted manually to meet different needs.

It is compatible with various external energy sources such as USB adapters, Power Banks, Solar Panels etc.

It has the ability to restore over-discharged IMR batteries and to activate over-discharged Li-ion batteries. UM2 will check the battery before starts charging. If the battery is damaged the display will show the message “EE EE”.

It has a reverse polarity and short circuit protection.

If there is no action on the charger buttons within 10 minutes, the display will turn off to save power.

It is made of durable polycarbonate materials that are fire retardant.

It incorporates a smart temperature regulation system, designed to protect it from overheating.

The unique cooling fins are designed for excellent cooling performance.

Download here the product manual.

Technical Characteristics

• Two-slot USB smart charger
• Quick Charge function (QC 2.0)
• Two slots simultaneously charging
• Independently control of each charging slot
• Charging speed up to 1500mA in a single charging slot
• Compatible with Li-ion and Ni-MH / Ni-Cd batteries with automatic recognition
• Automatic recognition of the battery energy level and automatic selection of the appropriate voltage and charging mode (LiFePO4 and 3.8V Li-ion batteries excluded)
• Automatic selection between three (3) charging methods (CC, CV and -dV / dt)
• LCD liquid crystal display with low energy consumption for real-time presentation of charging information
• It is possible to manually adjust the charging cut-off voltage and the charging current
• Automatic recognition of high or low capacity batteries and automatic selection of the appropriate charging current
• ​​Automatic termination of charging upon completion
• Reverse polarity and short circuit protection
• Over-discharged battery activation
• Li-ion battery recovery
• Overcharge protection
• Made of durable fire retardant polycarbonate materials
• Design for maximum heat dissipation
• RoHS, CE, FCC and CEC certified
• Input : 5V / 2A , 9V / 2A , 18W (MAX)
• Output: 4.35V ±1% / 4.2V ±1% / 3.7V ±1% / 1.48V ±1%
• Quick charge function (QC) : 1500mA * 2 (MAX)
• Normal operation: 1000mA * 2 (MAX)
• Compatible with IMR/Li-ion/LiFePO4 Batteries : 10440, 14500, 14650, 16500, 16340(RCR123), 16650, 17350, 17500, 17650, 17670 , 17700, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22500, 22650, 25500, 26500, 26650, 26700
• Compatible with Ni-MH/Ni-Cd batteries : AA, AAA, AAAA, C, D
• Dimensions : 152 mm x 73 mm x 40 mm
• Weight: 148.3g (Without the charging cable)